This spell functions similarly to lesser geas, except that it
affects a creature of any HD and allows no saving throw.

Instead of taking penalties to ability scores (as with lesser geas), the subject takes 3d6 points of damage each day
it does not attempt to follow the geas/quest. Additionally, each day it must make a Fortitude saving throw or become sickened.

These effects end 24 hours after the creature attempts to resume the geas/quest.